Camera



SeptSO, 1941. R. WMEYER' 2,257,424

I In venior anni aan, 1941 2.257.424

UNITED STATES PATENT OFFICE sesam camina y nemend w. Meyer; champaign, ni. Appueeuen August si, raso, serial Ne. :sasso 10mm. (cias-sn c The present invention relates to new and use- The opposed inner walls of the chambers 8 and ful improvements in miniature and other types' .Y l have formed therein vertical grooves I2 which oi' roll iilm cameras and has for its primary obslidably receive the tongues 5 The back 1 of the ject to provide, in a manner as hereinafter Aset magazine l has formed therein a passage I3 forth. a camera oi' this character comprising a through which the nlm travels. Formed in the detachable or removable nlm magazinewhereby front wall of the back 1 is an exposure opening the photographer may conveniently use diiferent Il which registers with the opening l. A slidably types or kinds of films without exposing the films mounted shutter Il is adapted to close the openwhen a change is being made. ing I4. The shutter Il is slidable in channels Another veryimportant object of the inven- "l Il which are provided therefor in the vertical tion is to provide a detachable nlm magazine walls oi' the opening I4. Guides I1 are provided which may be used with cameras without the neon the rear of the'back I for receiving and recessity of making material alterations in the optaining the shutter Il when the camera is in use. erating mechanisms of said cameras. The reference numeral Il designates a spring Other objects of the invention are to provide a '5 actuated illm pressure plate which is mounted camera of the character described which will be in the back 1 over the opening I4. comparatively simpleinconstruction,strong,dur 'I'he reference numeral Il designates counter able, highly efficient and reliable in use, compact, sprockets which are jcumaled in the magazine iight in weight and which may be manufactured chamber I adjacent one end of the passage I3. at low cost. v 2" Of course, the sprockets I! are actuated by the All of the foregoing and still further objects film strip as it passes thereover to the spool I I. and advantages of the invention will become ap- The upper ends of the spools Inl and I I are slotted parent from a study of the following speciiicaas usual, as at 2l. Access to the chambers 8 tion, taken in connection with the accompanyand l may readily be had through the medium of ing drawings wherein like characters oi' refer- 2" a closure liwhich. it will be noted, constitutes ence designate corresponding parts throughout the back of the entire magazine unit 6. The

the several views, and wherein: closure ZI is hinged at one end on the chamber Figure 1 is a view in horizontal section through I, as at 22. Suitable means, as at 2l, is provided an embodiment of the invention. Ffor releasably securing' the free end of the clo- Figure 2 isayiew in rear elevation of the cam- 3" sure 2| to the chamber s. The closure 2| also r 1era with the removable iiim magazine omitted. opens-the film passage Il when said closure is Figure) is a vertical longitudinal sectional 'swung to open position.

view through the magazine, taken substantially Referring now to Figure 2 of the drawings, 'it

onthe line l-l oi Figure 1. will be observed'that the camera proper further Figure 4 is a view in horizontal section through 35 includes a head 2l from which the box 2 depends,

the attachment which is used (or fine focusing said head projecting beyond the ends oi' said box.

or when ground glass focusingis necessary. Mounted on one end portion of the head 24 is Figure 5 is a perspective view of another form a film rewinding knob 2l which actuates the shaft of the invention. o 26. said shaft being operatively engageable with. 0

Referring now to the drawings in detail, it the spool II in the magazine chamber l. .l A film will be seen that the reference numeral I desigtake-up knob 21 is mounted on the other end nates generally what may be referred to as the portion of the head 24 for actuating a shaft 2l camera proper. The camera I includes a box l which is adapted foi-'operative connection th4 .I having mounted thereon the usual lens tube l. 4 the spool ,II in the magazine chamber l e Inthebaekoftheboxlisanexposureopexngl."

On the ends of the box 2 are vertical ribs or engageable with the shaft Il of the sprockets tongues I, the purpose of which will be presently Il for actuation by said sprockets. operatively set forth. f

Mounted on the box l is a removable magazine '5o which is designated .generally by the reference the usual shutter operating knob l2 on the head numeral I. The magazine! comprisesaback 'I 2L' Asbestseeninlligurellofthedrawingsthe on the ends of which are film chambers! and l. tops of the magazine chambers l and l have Removable spools Il and II are mounted in the formed therein openings u which accommodate chambers l and l. The spools It and II vare of the elements Il and Il. A socket ll receivesthe conventional construction. s 55 element 2l.

-at 31. Mounted on top Thus, the photographer may the magazine units l with different kinds or types It may be well to here state that the mechanism in the head 24 is substantially conventional and will be foimd in the ,"Perfex" camera. The' reference numeral 2l designates a sighting-window in the head 24 and I! designates a range lilnder window. An exposure meter window is indicated of the head 24 is an accessory clip 32.

It is thought that the manner in which the cameraisusedwillbereadilyapparentfroma consideration of the foregoing. The unit t is loaded and slipped l tongueslonsaidboxengaginginthechannels or grooves I2. Any suitable means may rovided for locking the magasine! in-position on thebox 2. 0i course.whentheknob21 isrotated the spool Il is actuated for nlm from the spool il. To expose the camera is in use the shutter or slide Il is removed from the opening Il and mounted in the retaining guides I1 on the backof the hinged closure 2|. It will thus be seen that a camera nlm therein may be expeditiously mmmted-on said camera and removed therefrom as desired. load a plurality of o! mms which may be conveniently used as desired.l

In Figure 5 ot the drawings,`the reference numeral Il designates generally a' removable magazine unit which is adapted for use with cameras which are not equipped with a windingv mechanism, etc. Toward this end, the-maga zine 40 comprises spool chambers 4I and 42 which are slidable on the camera proper, as at 4I. A rewind knob M is provided on the chamber 4I. -The reference numeral Il designates a nlm take-up spool winding knob with exposure counter graduations, as at ,on the magazine chamber 42. The chamber l2 is further provided with a film trip knob l1. In otherrespects the form of the invention shown in Figure 5 of the drawings is substantially similar in construction and operation to that illustrated in Figures 1, 2 and 3 of said drawings.

\ In Figure '4- of the drawings. the reference numeral ll designates generally what may be reonthebox2,the.

ferred to as a focusing attachment. The attachment l2 comprises a frame Il which is adapted tobeslidablymountedonthebackofthe box 2 after the magazine unit1 has moved. Toward this end. the ends ot Il are formed to provide channels l2 ceivethetongueslontherearci Mountedinancpeningintheframell isapieoe ofgroundglassllforregistrywith 'gageable beneath 'the end portions ofthe assagehavingaslotcnthe with the spools perpendicular means on said end portions ofthe head or ating the spools in the chambers, the nlm opposite side fromthe head and a shutter slidably moimted in said slot 

